Process for rendering ether air free



Sept m. 1924. 1,508,563 E. MALLINCKRODT, JR

PROCESS FOR RENDERING ETHER AIR FREE Filed Feb. 15. 1923 Candesens A i r and Ehe Vapar.

Commercial h er To Caliecorlm?" Free Ezizer 7' P /f z' /J 1245 0 ac ag ng pinar@ Patented Sept. g titten EDWARD mALLrnorison'r, or sr. Lou

PBCESS FOR REHDEEI'KG' ETHER- LEB.

Application filed February f. Serial No. 613;?,

To all 4whom 'it may conce/rit:

Be it known that l, EDWARD MALLINCK- nobr, J r., a citizen of the 'United States, rei4 Another object of the invention is to pro l vide :in improved process for 'renderin9,` ether free loy sulojeetiifigu the ether to :t number of successive lioilings so arranged that the portion of the ether that is most nearly :tir free passes its Vapor into the ether that contains more nir, allowing' e. portion of the ether together with all the entruined air to escape into the atmosphere :it the end of the series of hoilings and collecting the onlance of the ether in the air free condition :it the other end ot' the series of boilings under suitable exclusion of the surrounding utmosphere.

Another object of the invention is to prof;

vide the improved process for renderingy ether air free as hereinafter disclosed.

rvThe drawing illustrates an apparatus designed and adapted for renderingl ether air free hy the present process.

`In the apparatus shown in the drawing the ether 'troni e, niain source of supply iS.

conducted through u pipe l into an ether storage tank 2 und thence through a pipe 3 equipped with e vulve t and through it float box 5 und a pipe 6 having e valve into the distillation column. 8. 'lfhe velve 7 is :t regulating vulve and the float device 5 is a well understood construction to control the iow of the ether into the distilletion column. i

l The distillation column 8 conta-ins rertical series ot horizontal sections 9 and the pipe 6 opens into the distillation column 8 loetween the top und bottom sections, where by ether admitted from the pipe 6 will poss into all of the lower sections to si steam heating coil 10 Within the bottoni et the dietillation column. The heet ott the heating coil boils the ether thronohont the distillation column so that the ether subjected to :l plurality oi' successivo lioilings :is it pn downwardly llnfongl'li the series oi sections 9, ln this wey the boiling; other in ezicli sci tion discliurgcs its 'vapor under the sin-litro olf the next adjacent sections. while the vapor from chore the npilwrniost section in the distillation colnnin Si posses ont lnongli. zi pipe il to :t condenser l: 'troni which it pipe 13 leeds into the upper portion of the istillation column to return thereto u poi'- tion of the condens-ed other. .fi pipe il from the condenser lil contini-ls to :1. condenser 5 the remaining ether vapor containingA nir or other volatile impurities. u liicli are pos-sed oil' as Waste, 'the lic fior portion 'oeiinf 'n passed through :i iiigiic lo and the lighter portion being passed through :i pipe lleinling through coijnlcnsers ift The ether poss-- ingv through the coinlenscrs collected and utilized us coininczcizil cth r.

The :iir tree ether in the distillation column having been su 'lectcd to successi-e lioi linge as described i conducted 'lli in the lower end olf the iilistilni'tion column tln'onjgli e, pipe 19 loading to purified other slorngc tank 2O in cominnniczition Vwith n gason'ietcr 21. rom the purified other signage tznilc Q() the free other is conductcd through :t pipe to on appropriate nmmrnitnef l'or packaging; the air tree other in itszrir i'rce condition Without access to ztiiz From the 'foregoing it Vwill lic seen that have provided zt inzicticnhle apparatus und process tor renderingv other zur 'tree in coinmeiciui quantities und that thc inrcntii'in in this :ind other respects accomplishes :ill ot' .ts intended objects :x nd purposes.

qifi/hut l claim und desire to secure 'oy Letters Patent fl. The process of rendering' other uil' tree. Which cons` in subjecting; the ether to two or more successive boilingrs so arranged that the portion that is most nearly nir 'free posses its impor into the ether that contains more allowing s portion yoi" the ether together with all the entrain :d nir 'to 1escape the atmosphere et the end of the series of coilv ings and collecting the balance ot the other :he tir :tree conf' Zon et the o her end ci the 'iis of looilinp's under chision o; surround l2. he of tree, ifi-h consists in L, e ether to he puriiicd through n column countercurrent tothe etner impor genemted still in the still whereby the vapor becomes progressively richer in air and inally carries with it the nir as it passes `from the still, while the liquid ether becomes progressively1 freer from entraine'ol air, and collecting the air free ether.

3. The process of rendering ether air free,

which consists in boiling ether arranged so that each portion of the boiling ether clischarges its vapor under the surface of the next adjacent portion, the end portion of the series only discharging its vapor into the atmosphere,al1 other portions being protected from the atmosphere (in suitable vessels) and continuously allowing the ether to be treated to How in at a suitable point in the series and'jvithdrawing the air free product with suitable protection from the atmosphere at or near the opposite end of the series from that 'which discharges Vapor 20 into the atmosphere.

4. The process of rendering ether air free, which consists in arranging two ormore portions of boiling ether in a series such that each passes its vapor under the surface 25 of the boiling'ether in the next portion, the end portion only passing its vapor containing all the entrained air that was inall portions ofthe ether into the atmosphere, all

of the remaining portions of the boiling 30 from near the end of the series opposite the $5 end communicating with the atmosphere.

EDWARD MALLXNCKRODT, JR. 

